CN1130737A - Poppet type direction control valve - Google Patents
Poppet type direction control valve Download PDFInfo
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- CN1130737A CN1130737A CN95119795A CN95119795A CN1130737A CN 1130737 A CN1130737 A CN 1130737A CN 95119795 A CN95119795 A CN 95119795A CN 95119795 A CN95119795 A CN 95119795A CN 1130737 A CN1130737 A CN 1130737A
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- valve
- spool
- valve opening
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- opening
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/06—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements
- F16K11/065—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members
- F16K11/07—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only sliding valves, i.e. sliding closure elements with linearly sliding closure members with cylindrical slides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/04—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with a single servomotor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/86622—Motor-operated
- Y10T137/8663—Fluid motor
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T137/00—Fluid handling
- Y10T137/8593—Systems
- Y10T137/86493—Multi-way valve unit
- Y10T137/86574—Supply and exhaust
- Y10T137/8667—Reciprocating valve
- Y10T137/86686—Plural disk or plug
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Multiple-Way Valves (AREA)
- Fluid-Driven Valves (AREA)
- Lift Valve (AREA)
Abstract
The present invention provides a poppet type directional control valve. In a directional control valve, in which a poppet type valve disc can be switched over and driven by pilot fluid pressure, and there are provided on a valve body 2 a first valve bore 6a formed from one end toward a first valve seat 7, a second valve bore 6b formed from the other end toward a second valve seat 8, and a communicating valve bore 6c formed from the valve bore 6a and communicating between the first valve seat and the second valve seat. The valve disc comprises a first valve disc 10 inserted through the first valve bore and used for opening and closing the first valve seat and a second valve disc 11 inserted through the second valve bore, connected with the first valve disc and used for opening and closing the second valve seat, and these components are made of a material having elasticity and sealing property.
Description
The present invention relates to utilize the pressure-actuated poppet type direction control valve of control fluid.
Poppet type direction control valve has supplying mouth, delivery outlet, exhaust port and the pilot pressure mouth of pressure fluid; This pressure fluid supplying mouth opening is facing to the valve opening that has inserted spool, delivery outlet is opened on above-mentioned valve opening, utilize the switch motion and the above-mentioned supplying mouth of spool to be switched on or switched off, exhaust port is opened on above-mentioned valve opening, when the connection of above-mentioned supplying mouth and delivery outlet is cut off, it is communicated with delivery outlet, and the pilot pressure mouth is then opened in the control pressure chamber of above-mentioned valve opening one end; Between the supplying mouth of above-mentioned valve opening and delivery outlet and be respectively equipped with the 1st valve seat and the 2nd valve seat between delivery outlet and the exhaust port; Poppet type direction control valve also has valve body and carries the ejector half spool; Valve body constitutes one with the 1st valve seat and the 2nd valve seat, carries the ejector half spool and is inserted in the above-mentioned valve opening, and the 1st valve seat and the 2nd valve seat are opened and closed; Poppet type direction control valve is to utilize the control hydrodynamic pressure be supplied to control pressure chamber and go out from this chamber to switch above-mentioned spool, drives valve core movement and opens and closes the 1st valve seat and the 2nd valve seat, and this valve does not need particular example for well-known yet.
In addition, the above-mentioned well-known change-over valve core Sealing of carrying dynamic formula that normally will open and close valve seat is installed in cutting or is embedded on the valve rod and on the flange that forms and constitute.
But, above-mentioned selector valve is at valve body, the structure of spool and be convenient to the assembling aspect and lack consideration, because or inlay on valve rod so that flange to be set by the cutting valve rod, processing time consuming is bothersome, price is high, in addition, because it is bigger than the valve-seat diameter of valve body to carry the diameter of dynamic formula Sealing, general, insertion and assembling work bother in the valve opening of valve body.In addition, owing to will insert in the control pressure chamber that is located on another path switching the piston seal ground that drives this spool, therefore in this, the workload of assembling also will increase.
Major technique problem of the present invention provides a kind of selector valve of lifting type, and the valve body of this valve is shaped, spool is shaped and assembling is all very simple and easy, makes also cheap.
Another technical task of the present invention provides a kind of selector valve of lifting type, it is not to be installed in by cutting or be embedded in the spool that removes to constitute lifting type on the flange that forms on the valve rod like this carrying the dynamic formula Sealing, but with connected with valve body structure, very simple structure is as the spool of lifting type.
In addition, another technical task of the present invention provides a kind of poppet type direction control valve, and it does not need to insert in the control pressure chamber that is located on another path switching the piston seal ground that drives spool, only just can reduce the workload of assembling work in this.
In order to solve above-mentioned problem, characteristics of the present invention are that it is at the supplying mouth, delivery outlet, exhaust port and the pilot pressure mouth that have out on the valve body on above-mentioned valve opening; Utilizing the control hydrodynamic pressure that feeds control pressure chamber to switch in the poppet type direction control valve that drives, carrying the ejector half spool is to be made of the 1st valve opening, the 2nd valve opening and connection valve opening; The 1st valve opening is from core body axial direction one end the valve opening of above-mentioned valve body, open part by supplying mouth, offer to the part of the 1st valve seat always, the 2nd valve opening is the other end from the valve body axial direction, open part by control pressure chamber and exhaust port, offer to the part of the 2nd valve seat always, be communicated with valve opening between above-mentioned the 1st valve seat and the 2nd valve seat that oppositely are provided with mutually, opening portion by delivery outlet is opened in above-mentioned the 1st valve opening or the 2nd valve opening one side, and these valve openings are interconnected; The above-mentioned ejector half spool of carrying also is made of the 1st spool and the 2nd spool; The 1st spool inserts by the 1st valve opening, and in order to open and close the 1st valve seat, the 2nd spool inserts by the 2nd valve opening, is bonded into one with above-mentioned the 1st spool, in order to open and close the 2nd valve seat; These spools are materials of the flexible and sealing of apparatus, and unitary moulding is made separately; Above-mentioned control pressure chamber is located between the 2nd spool and the packaged unit; Be inserted in the 2nd valve opening, packaged unit is with the opening end sealing of the 2nd valve opening the 2nd seal spool.
In above-mentioned poppet type direction control valve, the guide portion for the 2nd spool mobile guide in the 2nd valve opening integrally can be located on the 2nd valve opening or the 2nd spool; Can utilize the packaged unit of manual operational unit formation with the opening end sealing of the 2nd valve opening, this manual operational unit can be used to switch the driving spool from outside impacting force; In addition, for the output with the small electrical magnet valve guides to the pilot pressure mouth, the output that utilizes this poppet type direction control valve is as the control fluid that drives big capacity main valve, on the main valve attachment face of valve body one side, have pressure fluid supplying mouth, delivery outlet and exhaust port, on the solenoid valve attachment face of a relative side, have respectively the supplying mouth and the exhaust port that directly are communicated with above-mentioned supplying mouth and exhaust port with the main valve attachment face, and the pilot pressure mouth that is communicated with control pressure chamber.
In having the poppet type direction control valve of said structure, when controlling that fluid is supplied with control pressure chamber or when control pressure chamber is discharged, owing to act on the effect of the control hydrodynamic pressure on the 2nd spool, the 1st spool and the 2nd spool are integral, in valve opening, move, therefore can switch the connection situation between delivery outlet, supplying mouth and the exhaust port.At this moment, because the 2nd spool utilization is located at originally on one's body targeting part guiding of the 2nd valve opening or this spool, mobile in the 2nd valve opening, therefore, spool can stably be switched driving.
In addition, when outside valve body, pushing manual operational unit,, therefore also can use the connection situation between the manual switchover port owing to spool can be whole mobile like this.
Above-mentioned poppet type direction control valve is owing to be to be made of the 1st valve opening, the 2nd valve opening and connection valve opening; The 1st valve opening is that the valve opening of above-mentioned valve body is offered to the 1st valve seat part from the axial end of valve body valve opening, the 2nd valve opening is from the axle direction the other end, offer to the part of the 2nd valve seat by control pressure chamber etc. always, be communicated with valve opening between above-mentioned the 1st valve seat and the 2nd valve seat, be opened in above-mentioned the 1st valve opening or the 2nd valve opening one side, the the 1st and the 2nd valve opening is interconnected, therefore, this not only makes the valve opening of valve body form easily, spool also can carry out easily from the insertion at axial two ends, and after the valve body shaping, propose the assembling of ejector half spool and also carry out easily.
In addition, owing to can the 1st spool be inserted the 1st valve opening from an axial end, from the other end the 2nd spool is inserted the 2nd valve opening, and they are joined together in the intermediate portion, do not need to be installed in by cutting or on the flange of inlaying formation on the valve rod with carrying the dynamic formula Sealing, therefore, the shaping of spool is very simple and easy, and manufacture cost is also cheap.In addition, there is no need and will switch in the control pressure chamber of piston intercalation on being located at another path that drives spool, in this, the workload of assembling work also can reduce.
See again, on the main valve attachment face of valve body one side, be provided with supplying mouth, delivery outlet and exhaust port, on the solenoid valve attachment face of its opposite direction one side, be provided with respectively the supplying mouth and the exhaust port that directly are communicated with supplying mouth and exhaust port, and the pilot pressure mouth that is communicated with control pressure chamber, with the selector valve of this lifting type amplification valve as the control fluid, like this, pass through valve body, directly supply with discharging under the situation of the next pressure fluid of main valve and being connected of valve become easy with respect to the small-sized pilot solenoid valve that is installed on the solenoid valve attachment face, the output of above-mentioned small-sized pilot solenoid valve is guided to the pilot pressure mouth, then can utilize this poppet type direction control valve as the pilot valve that drives a large amount of main valves.
(simple declaration of accompanying drawing)
Fig. 1 gets different switching states in the right-hand part and the left side of spool and represents as state for the 1st embodiment's of expression poppet type direction control valve of the present invention longitudinal profile front view.
Fig. 2 is the sectional view in the X-X position of Fig. 1.
Fig. 3 is the sectional view in the Y-Y position of Fig. 1.
Fig. 4 gets different switching states in the right-hand part and the left side of spool and represents as state for expression the 2nd embodiment's of the present invention longitudinal section front view.
Fig. 5 gets different switching states in the right-hand part and the left side of spool and represents as state for the front view of expression the 3rd embodiment's of the present invention longitudinal profile.
Fig. 6 is the longitudinal profile front view of above-mentioned the 1st embodiment's selector valve use condition.
Fig. 7 is the pie graph with the structure of the type pilot valve of functional symbolic representation Fig. 6.
(symbol description)
1,21, the 31-selector valve; 2,22, the 32-valve body;
The 3-supplying mouth; The 4-delivery outlet; The 5-exhaust port;
The 6-valve opening; 6a-the 1st valve opening; 6b-the 2nd valve opening; 6c-is communicated with valve opening; 7-the 1st valve seat;
8-the 2nd valve seat; The 9-control pressure chamber;
10-the 1st spool; 11,23-the 2nd spool;
The 14-manual operational unit; 19,23f-targeting part;
The 36-supplying mouth; The 37-exhaust port; PP-pilot pressure mouth.
Fig. 1 represents the 1st embodiment of relevant poppet type direction control valve of the present invention, and the valve body 2 of this selector valve 1 has pressure fluid supplying mouth 3, delivery outlet 4, exhaust port 5 and pilot pressure mouth PP; Pressure fluid supplying mouth 3 is with respect to valve opening 6 openings that inserted spool, delivery outlet 4 is opened on above-mentioned valve opening 6, it utilizes the switch motion of spool and above-mentioned supplying mouth 3 to be switched on or switched off, exhaust port 5 is opened on above-mentioned valve opening 6, when the connection of above-mentioned supplying mouth 3 and delivery outlet 4 is cut off, it is communicated with this delivery outlet 4, pilot pressure mouth PP opens in the control pressure chamber 9 of an end of above-mentioned valve opening 6, and, between the supplying mouth 3 of above-mentioned valve opening 6 and delivery outlet 4 and be respectively equipped with the 1st valve seat 7 and the 2nd valve seat 8 between delivery outlet 4 and the exhaust port 5.These parts all are integrally formed with the synthetic resin or the aluminium of hard.
Above-mentioned valve opening 6 has the 1st valve opening 6a, the 2nd valve opening 6b and connection valve opening 6c; The 1st valve opening 6a is from axial direction one end (lower end of Fig. 1) of valve opening 6, open part 3a by supplying mouth 3 offers to the part of the 1st valve seat 7 always, the 2nd valve opening 6b is from the other end of axial direction, open part 5a by control pressure chamber 9 and exhaust port 5 offers to the part of the 2nd valve seat 8 always, be communicated with valve opening 6c between above-mentioned the 1st valve seat 7 and the 2nd valve seat 8 that oppositely are provided with mutually, open part 4a by delivery outlet 4 is opened in above-mentioned the 1st valve opening 6a one side, and with valve opening 6a, 6b is interconnected.
Because utilizing the model of valve body 2 to form is easy to carry out, above-mentioned the 1st valve opening 6a, by an end opening of axial direction part towards the 1st valve seat 7 at least diameter need not enlarge, be generally diameter and dwindle gradually, in addition, the diameter of connection valve opening 6c dwindles gradually and is connected with its top.On the other hand, the 2nd valve opening 6b also be from open part towards the 2nd valve seat 8 at least diameter need not enlarge, general, diameter is for dwindling gradually.
In this case, the inside diameter D of the control pressure chamber 9 of the 2nd valve opening 6b
1Diameter D than the 1st valve seat 7
2Diameter D with the 2nd valve seat 8
3Greatly, the diameter D of the 1st valve seat 7
2Diameter D than the 2nd valve seat 8
3Greatly.
In addition, above-mentioned connection valve opening 6c also can be by the front end from the 2nd valve opening 6b, and the diminishing mode of diameter connects, and in this case, makes the diameter D that makes the 2nd valve seat 8
3Diameter D than the 1st valve seat 7
2Greatly.
The 1st spool 10 of carrying ejector half inserts among above-mentioned the 1st valve opening 6a with the open part of valve opening 6a, can be free to slide, and the 1st spool 10 has column part 10a, tapered segment 10b, projection 10c, a plurality of axial rib 10d and valve spring retainer 10e; Column part 10a is inserted among the 1st valve opening 6a, has the gap, tapered segment 10b goes up and makes to have sealing surface 10f, it can contact or leave to open or close valve seat 7 with the 1st valve seat 7, projection 10c, gives prominence in the 2nd valve opening 6b by being communicated with valve opening 6e from this tapered segment 10b, a plurality of axial ribs 10d are arranged on the outer periphery surface except the fore-end of this projection, and valve spring retainer 10e gives prominence at an end opposite with projection 10c direction.
On the other hand, the 2nd spool 11 of carrying ejector half is inserted among the 2nd valve opening 6b by the open part of the 2nd valve opening 6b, can be free to slide, the 2nd spool 11 has the recess 10d of circular sealing surface 11c, core joint usefulness, the seal ribs 11b of body portion 11a and annular; Circular sealing surface 11c is in order to open and close the 2nd valve seat 8, body portion 11a has the sunk part 11e that enlarged passageway is used, depressed part 11e is formed on the outer periphery part of sealing surface 11c, the seal ribs 11b of annular is located on the outer periphery with the opposite side of above-mentioned sealing surface 11c direction, can in the 2nd valve opening 6b, slide, keep sealing.
The 1st spool 10 and the 2nd spool 11 apparatus are flexible makes with the independent unitary moulding of materials such as synthetic rubber sealing.
The opening utilization of above-mentioned the 1st valve opening 6a constitutes spring seat 12 sealings of packaged unit, keep sealing, be placed with valve spring 13 between the valve spring retainer 10e of this spring seat 12 and the 1st spool 10, it is compressed, and its elastic force is pressed on the sealing surface 10f of the 1st spool 10 on the 1st valve seat 7.
In addition, sealing also can be inserted manual operational unit 14 with being free to slide in the opening of the 2nd valve opening 6b, can be by manually-operable part 14 with manually pushing the 2nd spool 11, in the space that constitutes with the 2nd spool 11, form above-mentioned control pressure chamber 9, be provided with the Returnning spring 17 that is being compressed being located between flange 14a on this manual operational unit 14 and the valve body 2, on valve body 2, adorning a lid 15, utilize and the contacting of the flange 14a of its manually-operable part 14, limit manual functional unit 14 is outwards given prominence to from the 2nd valve opening 6b.This lid 15 by be located on the lid 15 in conjunction with recess 15a and the combination that combines protuberance 16 to being installed on the valve body 2, a plurality of is to be provided with above for the outer periphery surface that lid 15 is fixed on valve body 2 in conjunction with protuberance 16.
In addition, when not needing manual operational unit 14, can use with the spring seat 12 of above-mentioned the 1st valve opening 6a with the packaged unit of spline structure closure of openings with the 2nd valve opening 6b.
A plurality of rib 10d of above-mentioned the 1st spool 10, from Fig. 1 and Fig. 2 as can be seen, between rib and form the path of pressure fluid on every side, in addition, the projection 10c that also can set the 1st spool 10 inserts the insertion depth among the recess 11a of the 2nd spool 11.
Can find out also that from Fig. 1 and Fig. 3 the slip of the 2nd spool 11 is to utilize the 2nd valve seat 8 rib-like targeting part 19 on every side that is located in the 2nd valve opening 6b to lead, between a plurality of targeting parts 19, the path of pressure fluid is extended.
Insert the recess 11d of the 2nd spool 11 by projection 10c with the 1st spool 10, the 1st spool 10 and the 2nd spool 11 both can be chimeric.
In addition, by the 1st spool 10 and valve spring 13, manually-operable part 14 that the 2nd spool 11 and Returnning spring 17 be installed being inserted from the opening end of the 1st valve opening 6a that makes at valve body 2 and the 2nd valve opening 6b,, these parts can be installed in the valve body 2 closure of openings of two valve openings with spring seat 12 and lid 15.In this case, because the 1st spool 10 and the 2nd spool 11 can insert among the 1st valve opening 6a and the 2nd valve opening 6b individually, so the assembling of these spools in valve opening 6 is very easy to carry out.
Moreover, material flexible and sealing is integrally formed respectively because the 1st spool 10 and the 2nd spool 11 are apparatus, joint by them connects again, therefore there is no need Sealing is entrenched on the spool, also there is no need to be provided with and make whole mobile valve rod of these spools, thereby the assembling of spool is easy, and low price.
The action of above-mentioned poppet type direction control valve now is described: when the control air pressure of control pressure chamber 9 is discharged, shown in Fig. 1 left side, the pretightening force of valve spring 13 makes the 1st spool 10 with 7 sealings of the 1st valve seat, owing to compressed by rib 10c, be integral the 2nd mobile spool 11 with it and open the 2nd valve seat 8, therefore, the connection of supplying mouth 3 and delivery outlet 4 is interdicted, and delivery outlet 4 is communicated with exhaust port 5.
In the time will controlling air pressure supply control pressure chamber 9, by the 2nd spool 11 that this control air pressure compresses the 2nd valve seat 8 is closed, meanwhile, because the 1st spool 10 is opened the 1st valve seat 7, therefore, supplying mouth 3 and delivery outlet 4 are communicated with, and delivery outlet 4 was cut off with being communicated with of exhaust port 5.Thereby the pressurized air of supplying mouth 3 is from delivery outlet 4 outputs.
Shown in Fig. 1 left side, under the state that the connection of supplying mouth 3 and delivery outlet 4 is interdicted, when depressing manual operational unit 14, shown in the right-hand part of figure, become and the identical switching state of situation of supplying with the control air pressure again.Thereby, no matter owing to what reason, when control fluid pressure loss, with manually can reversing valve operated 1.
Fig. 4 represents the 2nd embodiment of the present invention, does not have the targeting part 19 among the 2nd valve opening 6b that is located at above-mentioned the 1st embodiment in the valve body 22 of this 2nd embodiment's selector valve 21.Therefore, the 2nd spool 23 of carrying ejector half that the 2nd valve seat 8 is opened and closed has circular sealing surface 23c, and core engages the sunk part 23d of usefulness, the seal ribs 23b of the depressed part 23e that enlarged passageway is used, body portion 23a and annular; The sunk part 23e that enlarged passageway is used is formed on the outer periphery of sealing surface 23c, body portion 23a has the targeting part 23f of a plurality of rib-like, targeting part 23f is with the internal surface guiding of the 2nd valve opening 6b, on sunk part 23e, highlight, and ring packing rib 23b can slide on the 2nd valve opening 6b internal surface, keeps sealing air tight.
This 2nd embodiment's other structures and effect, except the slip of the 2nd spool 23 is to utilize the targeting part 23d guiding, identical with the 1st embodiment.Therefore, main same place is marked with the symbol identical with the 1st embodiment among the figure, about their detailed description is omitted.
Fig. 5 represents the 3rd embodiment of the present invention, the valve body 32 of this 3rd embodiment's selector valve 31 is the same with the 1st embodiment, has pressurized air supplying mouth 33 at a side surface opening, delivery outlet 34 and exhaust port 35, on valve body 32 side surface relative, have compressed-air actuated supplying mouth 36 with above-mentioned opening, pilot pressure mouth PP and exhaust port 37, supplying mouth 36 directly is communicated with above-mentioned supplying mouth 33 by supply passage 36a and valve opening 38a, pilot pressure mouth PP is communicated with control pressure chamber 39 by pilot pressure path 39a, and exhaust port 37 directly is communicated with above-mentioned exhaust port 35 by drain passageway 37a and valve opening 38b.
Because other structures of the 3rd embodiment are identical with the 1st embodiment, so main same place is marked with the symbol identical with the 1st embodiment among the figure, detailed explanation is omitted.
The 3rd embodiment's selector valve 31, such as described later, on the surface that has supplying mouth 36, pilot pressure mouth PP and exhaust port 37 pilot solenoid valve has been installed, this is favourable for utilizing the pressure fluid that the flow on this selector valve 31 has been amplified to go drive installation in the occasions such as lip-deep fluid press machine that have supplying mouth 33, delivery outlet 34 and exhaust port 35.
Fig. 6 and Fig. 7 represent the example of use condition of above-mentioned the 1st embodiment's selector valve 1.
In this use condition, in type pilot valve 41, utilized above-mentioned selector valve 1, by from small capacity, and consume the control fluid that the few pilot solenoid valve 43 of electric power sends above-mentioned selector valve 1 is opened or closed, again the output of solenoid valve is supplied with the main valve control pressure chamber of jumbo main valve 42 as the control fluid or discharge from this chamber.
On the integrated package pedestal that the valve body 46 of the main valve 42 in this type pilot valve 41 setting has been omitted in the drawings, selector valve 1 is installed on the axial side of main valve 42,43 of pilot solenoid valves be installed in valve body 46 above.
Above-mentioned valve body 46 has main valve supplying mouth P, main valve delivery outlet A and B and main valve exhaust port EA and EB below, and the axial valve opening 47 that has these ports is arranged at core; Spool 48 inserts in this valve opening 47, can slide, spool 48 can be exported main valve A and B and switch to main valve supplying mouth P and main valve exhaust port EA and EB and be communicated with, below valve body 46, except above-mentioned port, offer external control pressure port 49 and pneumostome 50.
In addition, above-mentioned main valve 42 is related with the integrated package pedestal, when being arranged on valve body 46 on the integrated package pedestal, being opened in valve body 46 each following ports and being communicated with the corresponding port of integrated package pedestal respectively.
The axial two ends of valve body 46 be installed with that the 1st piston case 51 and the 2nd piston case 52, the 1 pistons 55 and the 2nd piston 57 are inserted in respectively in the main valve control pressure chamber 54 and recovery pressure chamber 56 in, can slide; Main valve control pressure chamber 54 is formed in the 1st piston case 51, and recovery pressure chamber 56 is formed in the 2nd piston case 52, and its compression area is littler than main valve control pressure chamber 54, and spool 48 is slided by these piston 55,57 pushings.Also be formed with axial through hole 48a on above-mentioned spool 48, it is with the respiratory cavity 54a of the 1st piston 55 and the 2nd piston 57 back, and 56a is interconnected, and path 56b makes recovery pressure chamber 56 be communicated with main valve supplying mouth P.
The pilot solenoid valve 43 that summary is represented among Fig. 6, as among Fig. 7 with functional symbolic representation, have the 1st pilot pressure supplying mouth P1, the 1st pilot pressure delivery outlet A1 and the 1st pilot pressure floss hole R1; Solenoid valve 43 constitutes as well-known 3-position-3-way solenoid valve, by to electromagnet 43a excitation with remove excitation, the 1st pilot pressure delivery outlet A1 can be switched to the 1st pilot pressure supplying mouth P1 and the 1st pilot pressure exhaust port R1 and is communicated with.
And, the 1st pilot pressure supplying mouth P1 is by being formed on the 1st pilot pressure supply passage 58 in the valve body 46, P is communicated with the main valve supplying mouth, the 1st pilot pressure delivery outlet A1 is communicated with the pilot pressure mouth PP of above-mentioned selector valve 1 by the 1st pilot pressure output channel 59, the 1st pilot pressure exhaust port R1, be communicated with respiratory cavity 54a by abridged path among the figure, again by through hole 48a, respiratory cavity 56a and pneumostome 50 and external communications.
The supplying mouth 3 of above-mentioned selector valve 1, by the 2nd pilot pressure supply passage 61 that is communicated with the 1st pilot pressure supply passage 58, P is communicated with the main valve supplying mouth, delivery outlet 4 is by the 2nd pilot pressure output channel 62, be communicated with main valve control pressure chamber 54, exhaust port 5 is by abridged path among the figure, and 54a is communicated with respiratory cavity, pass through through hole 48a, respiratory cavity 56a and the pneumostome 50 and the external communications of spool 48 again.
In addition, this selector valve 1 has the main valve control pressure chamber 54 that sizable capacity can be supplied with a large amount of pilot pressure air jumbo main valve 42 at short notice, manual operational unit 14, towards above state under be installed on the side of the 1st piston case 51.
Be opened in the said external pilot pressure mouth 49 on the valve body 46, be communicated with the 2nd pilot pressure supply passage 61 by external control pressure port 64.Therefore, above-mentioned type pilot valve 41 as required, can be used as internal control formula or external control formula.
But, during as the internal control formula, need utilize the appropriate device of having omitted among the figure such as screw that external control pressure port 49 is closed, when as the external control formula, essentially cut off the main valve supplying mouth P of main valve 42 and the connection of the 1st pilot pressure supply passage 58 and path 56b.
This type pilot valve 41, the electromagnet 43a of magnet valve 43 conduct electricity in the ban not during excitation, because the air pressure of control does not export the pilot pressure mouth PP of selector valve 1 to, the pilot pressure air of main valve control pressure chamber 54, be expelled to the outside by exhaust port 5, spool 48, the left end under the action of air pressure in recovery pressure chamber 56 in figure moves, and main valve supplying mouth P, main valve delivery outlet B and main valve delivery outlet A and main valve exhaust port EA are communicated with (referring to the first half of spool among Fig. 6 48).
When utilizing power pack 67 to give the electromagnet 43a excitation of solenoid valve 43, the 1st pilot pressure delivery outlet A1 is communicated with the 1st pilot pressure supplying mouth P1, because the pilot pressure air exports the pilot pressure mouth PP of selector valve 1 to, delivery outlet 4 is communicated with supplying mouth 3, and the air of pilot pressure exports main valve control pressure chamber 54 to.Thereby, utilize the compression face product moment in main valve control pressure chamber 54 and recovery pressure chamber 56, right-hand move of the 1st piston 55 in figure, pushing spool 48, main valve supplying mouth P and main valve delivery outlet A, and the main valve exhaust port EB of main valve delivery outlet 6 is communicated with (referring to the Lower Half of the spool among Fig. 6 48).
When removing the excitation of electromagnet 43a, the 1st pilot pressure delivery outlet A1 of pilot solenoid valve 43 is communicated with the 1st pilot pressure exhaust port R1, because the air of the pilot pressure mouth PP of selector valve 1 is discharged to the outside, impacting force effect by valve spring, spool 10 and 11 returning positions, delivery outlet 4 is communicated with exhaust port 5.Like this, because the air of the pilot pressure of main valve control pressure chamber 54 is discharged the outside, spool 48 returns back to original state under the air pressure effect that acts on the recovery pressure chamber 56 on the 2nd piston 57.
Because the switching of the connection between the port that the spool 48 by main valve 42 carries out is to utilize the air that is supplied to a large amount of pilot pressures main valve control pressure chamber 54, that adapt with the volume of this control pressure chamber from selector valve 1 to carry out, therefore, even pilot solenoid valve 43 be small-sized and power consumption little, the responsiveness of main valve 42 is also better.Thereby, can very cheaply combine with the price of selector valve 1, can make the good pilot-type solenoid valve of responsiveness 41 prices also more cheap.
Here, the use condition that above-mentioned selector valve 1 has been installed on pilot-type solenoid valve 41 is illustrated, still, selector valve of the present invention just is not limited to this use condition.
The 3rd embodiment's shown in Figure 5 selector valve 31 also is applicable to the pilot solenoid valve 43 in the illustrated above-mentioned type pilot valve 41 of Fig. 6 is installed in the lip-deep use condition that has supplying mouth 36, pilot pressure mouth PP and exhaust port 37 in the selector valve 31.Therefore, pilot solenoid valve 70 and above-mentioned pilot solenoid valve 43 among Fig. 5 are same, has the 1st pilot pressure supplying mouth P1, the 1st pilot pressure delivery outlet A1 and the 1st pilot pressure exhaust port R1, by excitation and the releasing excitation of electromagnet 70a, can switch the 1st pilot pressure delivery outlet A1 to being communicated with the 1st pilot pressure supplying mouth P1 and the 1st pilot pressure exhaust port R1.
According to the poppet type direction control valve of the present invention of above detailed description, the shaping of valve body, the shaping of spool and assembling are all very simple and easy, cheap for manufacturing cost.
Promptly, the spool of carrying ejector half is not that the Sealing that will carry ejector half is installed in by cutting or is embedded in the flange that forms on the valve rod and constitutes, the structure relevant with constituting valve body is very simple, and make spool owing to use material with elasticity and sealing, therefore, the shaping of spool and assembling are all very simple and easy.
In addition, can also provide a kind of selector valve of lifting type in the present invention, it does not need and will switch in the control pressure chamber of piston intercalation on being located at another path that drives spool, in this, the workload of installation exercise is reduced.
Claims (4)
1. the selector valve of a lifting type, it has supplying mouth, delivery outlet, exhaust port and the pilot pressure mouth of pressure fluid; The supplying mouth of pressure fluid is with respect to the valve opening opening that has inserted spool, delivery outlet is opened on above-mentioned valve opening, utilize the switch motion of spool to be communicated with or cut off with above-mentioned supplying mouth, exhaust port is opened on above-mentioned valve opening, when the connection of above-mentioned supplying mouth and delivery outlet is cut off, it is communicated with delivery outlet, and the pilot pressure mouth is opened in the control pressure chamber of above-mentioned valve opening one end; Poppet type direction control valve also has valve body and carries the spool of ejector half; Between the supplying mouth and delivery outlet of above-mentioned valve opening, and be respectively equipped with the 1st valve seat and the 2nd valve seat between delivery outlet and the exhaust port, these valve seats are integral and form valve body, carry the ejector half spool and are inserted in the above-mentioned valve opening, in order to open or close the 1st valve seat and the 2nd valve seat; Switch at the control hydrodynamic pressure of utilize supplying with control pressure chamber or from this chamber, discharging and to drive above-mentioned spool, and open or close in the poppet type direction control valve of the 1st valve seat and the 2nd valve seat, it is characterized in that: offer the 1st valve opening, the 2nd valve opening and be communicated with valve opening; The 1st valve opening is the axial end of the valve opening of above-mentioned valve body from valve opening, offer to the part of the 1st valve seat by the open part of supplying mouth always, the 2nd valve opening is from the axial the other end of valve body, offer to the part of the 2nd valve seat by the open part of control pressure chamber and exhaust port always, be communicated with valve opening between above-mentioned the 1st valve seat and the 2nd valve seat that oppositely are provided with mutually, opening portion by delivery outlet is opened in above-mentioned the 1st valve opening or the 2nd valve opening one side, and these valve openings are interconnected;
The above-mentioned ejector half spool of carrying is made of the 1st spool and the 2nd spool; The 1st spool inserts by the 1st valve opening, in order to open or close the 1st valve seat, the 2nd spool inserts by the 2nd valve opening, engages with above-mentioned the 1st spool to be one, in order to open or close the 2nd valve seat, these spools are the flexible and independent unitary moulding manufacturings of material sealing of apparatus;
Form above-mentioned control pressure chamber between the 2nd spool in gas leakage ground insertion the 2nd valve opening of sealing and the packaged unit of sealing the 2nd valve opening opening end.
2. the described poppet type direction control valve of claim 1 is characterized by, and integrally is provided with targeting part on the 2nd valve opening or the 2nd spool, and it can be the mobile guide of the 2nd spool in the 2nd valve opening.
3. claim 1 or 2 described poppet type direction control valves is characterized by, and it has the manual control parts, by from outside pushing, and the changeable driving spool of these manual control parts, these manual control parts have formed the packaged unit of the opening end that seals the 2nd valve opening.
4. any described poppet type direction control valve of claim 1 to 3, it is characterized by, on a side of valve body, have the supplying mouth of pressure fluid, delivery outlet and exhaust port, on the opposite another side of this side surface direction, have respectively the supplying mouth and the exhaust port that directly are communicated with above-mentioned supplying mouth and exhaust port, and the pilot pressure mouth that is communicated with control pressure chamber.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP339640/94 | 1994-12-29 | ||
| JP6339640A JPH08184382A (en) | 1994-12-29 | 1994-12-29 | Poppet type direction switching valve |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1130737A true CN1130737A (en) | 1996-09-11 |
| CN1043809C CN1043809C (en) | 1999-06-23 |
Family
ID=18329418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN95119795A Expired - Fee Related CN1043809C (en) | 1994-12-29 | 1995-12-26 | Poppet type direction control valve |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US5620027A (en) |
| EP (1) | EP0719950B1 (en) |
| JP (1) | JPH08184382A (en) |
| KR (1) | KR0177544B1 (en) |
| CN (1) | CN1043809C (en) |
| DE (1) | DE69520420T2 (en) |
| TW (1) | TW289785B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705564A (en) * | 2012-05-24 | 2012-10-03 | 绵阳富临精工机械股份有限公司 | Spring fixing device of electromagnetic valve for executing mechanism of automobile electronic control system |
| CN104563930A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Double-flow-channel direction control short connection device |
| CN107477210A (en) * | 2017-09-21 | 2017-12-15 | 陈银 | A kind of novel two-position three-way reversal valve |
| CN107830202A (en) * | 2017-10-25 | 2018-03-23 | 上海永瑞气动有限公司 | The electromagnetic control valve of valve core structure can be combined in multistage |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4695453B2 (en) * | 2005-07-29 | 2011-06-08 | 株式会社豊田中央研究所 | Directional control valve |
| JP2007198423A (en) * | 2006-01-24 | 2007-08-09 | Daikin Ind Ltd | Shutoff valve and air conditioner |
| CN201169513Y (en) * | 2007-11-16 | 2008-12-24 | 常熟通润汽车零部件有限公司 | Pedal hydraulic double-speed and pneumatic idle load fast hoisting jack |
| DE102009059900A1 (en) * | 2009-12-21 | 2011-06-22 | Knorr-Bremse Systeme für Nutzfahrzeuge GmbH, 80809 | Valve means, electrically operated parking brake system and method of controlling an electrically actuated parking brake system |
| JP5741024B2 (en) * | 2011-02-02 | 2015-07-01 | ダイキン工業株式会社 | Expansion valve and heat pump type air conditioner using the same |
| KR101529267B1 (en) * | 2014-05-09 | 2015-06-29 | 주식회사 연우뉴매틱 | Operating part structure of air passage change in solenoid valve |
| US9822885B2 (en) | 2014-08-29 | 2017-11-21 | Automatic Switch Company | Flow rib in valves |
| JP6778252B2 (en) * | 2015-04-02 | 2020-10-28 | サイエンス アンド テクノロジー デベロップメント フアンド | Quick switching 3/2 Direct operation Hydraulic direction control valve |
| US20160340849A1 (en) * | 2015-05-18 | 2016-11-24 | M-B-W, Inc. | Vibration isolator for a pneumatic pole or backfill tamper |
| JP7320924B2 (en) | 2018-05-22 | 2023-08-04 | ナブテスコ株式会社 | fluid pressure valve |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1568057A (en) * | 1968-01-22 | 1969-05-23 | ||
| FR2150639B1 (en) * | 1971-08-27 | 1976-09-03 | Bouteille Daniel | |
| USRE34261E (en) * | 1981-11-06 | 1993-05-25 | Solenoid valve | |
| NL8201105A (en) * | 1982-03-17 | 1983-10-17 | Beta Bv | PNEUMATIC SWITCH, FOR EXAMPLE FOR PRESSURE PROTECTION. |
| DE3443078A1 (en) * | 1984-07-21 | 1986-01-30 | Wabco Westinghouse Fahrzeugbremsen GmbH, 3000 Hannover | Valve device |
| DE3534387A1 (en) * | 1985-09-26 | 1987-04-02 | Rexroth Mannesmann Gmbh | Pilot operated 3/2-way valve |
| DE8817151U1 (en) * | 1988-02-10 | 1993-05-19 | Westfalia Becorit Industrietechnik Gmbh, 4670 Luenen, De | |
| JP2518697B2 (en) * | 1989-08-09 | 1996-07-24 | 株式会社コスメック | Sheet valve type pressure oil supply / discharge operation valve |
| DE9002680U1 (en) * | 1990-03-08 | 1990-06-07 | Krupp Mak Maschinenbau Gmbh, 2300 Kiel, De | |
| US5103866A (en) * | 1991-02-22 | 1992-04-14 | Foster Raymond K | Poppet valve and valve assemblies utilizing same |
| US5248126A (en) * | 1991-09-12 | 1993-09-28 | Volkswagen A.G. | Slide for a slide valve, and method for the manufacture thereof |
-
1994
- 1994-12-29 JP JP6339640A patent/JPH08184382A/en active Pending
-
1995
- 1995-02-09 TW TW084101094A patent/TW289785B/zh active
- 1995-11-20 US US08/560,976 patent/US5620027A/en not_active Expired - Fee Related
- 1995-11-23 DE DE69520420T patent/DE69520420T2/en not_active Expired - Fee Related
- 1995-11-23 EP EP95308428A patent/EP0719950B1/en not_active Expired - Lifetime
- 1995-12-09 KR KR1019950048146A patent/KR0177544B1/en not_active IP Right Cessation
- 1995-12-26 CN CN95119795A patent/CN1043809C/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705564A (en) * | 2012-05-24 | 2012-10-03 | 绵阳富临精工机械股份有限公司 | Spring fixing device of electromagnetic valve for executing mechanism of automobile electronic control system |
| CN102705564B (en) * | 2012-05-24 | 2014-07-23 | 绵阳富临精工机械股份有限公司 | Spring fixing device of electromagnetic valve for executing mechanism of automobile electronic control system |
| CN104563930A (en) * | 2013-10-27 | 2015-04-29 | 中国石油化工集团公司 | Double-flow-channel direction control short connection device |
| CN104563930B (en) * | 2013-10-27 | 2017-02-15 | 中国石油化工集团公司 | Double-flow-channel direction control short connection device |
| CN107477210A (en) * | 2017-09-21 | 2017-12-15 | 陈银 | A kind of novel two-position three-way reversal valve |
| CN107830202A (en) * | 2017-10-25 | 2018-03-23 | 上海永瑞气动有限公司 | The electromagnetic control valve of valve core structure can be combined in multistage |
Also Published As
| Publication number | Publication date |
|---|---|
| US5620027A (en) | 1997-04-15 |
| DE69520420T2 (en) | 2001-07-05 |
| EP0719950B1 (en) | 2001-03-21 |
| KR960023957A (en) | 1996-07-20 |
| KR0177544B1 (en) | 1999-04-15 |
| DE69520420D1 (en) | 2001-04-26 |
| TW289785B (en) | 1996-11-01 |
| EP0719950A2 (en) | 1996-07-03 |
| EP0719950A3 (en) | 1997-02-05 |
| JPH08184382A (en) | 1996-07-16 |
| CN1043809C (en) | 1999-06-23 |
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